2

也许我是在想太多或让自己感到困惑，但我的脑袋被困在这个循环中，我无法摆脱。

我有一个 JSON 格式：（在http://jsonformatter.curiousconcept.com/验证）

{
  id: 1,
  sections: "5",
  total: "10",
  result: {
    3: 00PM: [
      {
        name: "Anurag",
        status: "Web"
      },
      {
        name: "Anurag2",
        status: "Web2"
      }
    ],
    5: 00PM: [
      {
        name: "Anurag",
        status: "Seated"
      }
    ],
    6: 00PM: [
      {
        name: "Anurag4",
        status: "Web4"
      },
      {
        name: "Anurag5",
        status: "Web5"
      },
      {
        name: "Anurag6",
        status: "Web6"
      },
      {
        name: "Anurag7",
        status: "Web7"
      }
    ]
  }
}

到目前为止我有这个：

        NSDictionary *dict = [response JSONValue];
        NSDictionary *results = [dict objectForKey:@"result"];

        NSInteger num_results = [[dict valueForKey:@"total"] intValue];
        NSInteger num_sections = [[dict valueForKey:@"sections"] intValue];

        NSMutableArray *sections = [[NSMutableArray alloc] initWithCapacity:num_sections];
        NSMutableArray *objarr = [[NSMutableArray alloc] initWithCapacity:num_results];
        NSMutableArray *obj= [[NSMutableArray alloc] initWithCapacity:num_sections];
        NSMutableArray *temp = [[NSMutableArray alloc] initWithCapacity:num_results];

        for (NSString* key in results) {
            NSLog(@"Key: %@", key); // prints out 3:00 PM...5:00 PM etc...
            [obj addObject:[results objectForKey:key]]; // nested objects within each key are saved in the array
            NSLog(@"Object 1: %@", obj);
        }

        for (int i = 0; i < [obj count]; i++) {
            //NSLog(@"Object 2: %@", [obj objectAtIndex:i]);
            [temp addObject:[obj objectAtIndex:i]]; // I take each object from previous array and save it in a temp array
            for (int i = 0; i < num_results; i++) {
                NSLog(@"Object 3: %@", [temp objectAtIndex:i]);
                **[objarr addObject:[temp objectAtIndex:i]]; // I want to extract the object within the object but cannot get it to work**
            }   
        }

我能够在结果中的 3 个键中的每一个中创建一个对象数组。但是我无法将其中的每个对象作为单独的对象获取并将它们保存在数组中。

例如，在 NSArray 我有：

Object 3: (
        {
        name = "Anurag ";
        status = Web;
    },
        {
        name = "Anurag ";
        status = Web;
    }
)

如何获取此对象中的两个对象并将它们都保存在数组中？我想主要问题是我无法引用键名来获取单个对象。

4

3 回答 3

4

您可以使用以下代码，

NSDictionary *json = [response JSONValue];

// Get the objects you want
NSArray *items = [json valueForKeyPath:@"result.6: 00PM"];

这将返回6: 00PMNSArray键的对象

请也检查此链接。

于 2012-07-06T20:12:45.350 回答
1

您在第二个for循环中重新定义int i 。尝试类似的东西

for(int j = 0; j < num_results; j++)
于 2012-07-06T20:15:57.607 回答
1 
[temp addObject:[obj objectAtIndex:i]]; // I take each object from previous array and save it in a temp array

这是无用的动作。您实际上只是将数组复制obj到temp数组中 - 没有添加任何值。

于 2012-07-06T20:55:54.013 回答